TopCopilot AI Translation Assistant: browser translation extension. With one click, translate an entire web page and read translations below the original.
Bilingual comparison Stay on the page: translate body text and skip navigation and ads.
Same features in Chrome and Edge · Four engines · Start free
The Chrome Web Store listing is coming soon. For now, install in Microsoft Edge or read the installation instructions。
Want real-time web page translation but tired of built-in translation replacing all the original text? This browser extension puts translations below the original, so you can read English websites like a bilingual book.
When choosing a web translation tool, focus on how it presents translations and whether you can switch engines. TopCopilot covers these three common needs.
Open an English page and click Translate This Page. Translations appear below each paragraph, so you do not need to switch back and forth to the original. Useful for articles, technical documentation and long forum posts.
Recognizes the main content and skips navigation, ads and code blocks. Translate directly on the original site without copying the entire page into another tool.
Bing, Google Translate and built-in browser AI are free. Switch engines if one is not a good fit; the LLM engine is suited to long sentences and specialist content.
For English–Chinese close reading, the extension supports selected-text translation and multiple target languages; for reading Gmail / Outlook emails, see Email translation extension; for Word and Excel documents, use the Windows translation add-ins。
No copying, pasting or switching to another translation website.
Open Microsoft Edge and install TopCopilot AI Translation Assistant from the Add-ons store. Requires Edge 114 or later. The Chrome Web Store listing is coming soon with the same features.
Click the toolbar icon to open the sidebar, choose your target language and engine, then start whole-page translation with one click.
Translations appear paragraph by paragraph below the original without leaving the page. Switch to translation-only view or restore the original at any time.
If one engine does not suit the page, try another without changing extensions. Choose between free engines and the subscriber engine as needed.
The default engine: Microsoft's online translator, fast and consistent for whole pages.
A free online engine with broad language coverage, available with one click in the sidebar.
Uses the browser's built-in AI translation model on your device. The first use requires a one-time language-pack download.
For paid subscribers: LLM whole-page translation for smoother long sentences and specialist content. Shares your account and credits with the Word and Excel add-ins.
Alongside whole-page translation, the extension includes selected-text, dictionary and grammar tools for close reading.
Translate the main content with one click and read each translation below the original. Useful for English articles, documents and long forum posts.
Identifies the main content and skips navigation, ads and code blocks, keeping the page readable.
Select an English word to see pronunciation, part of speech, definitions and example sentences in the sidebar. Select a sentence to get its translation.
Select a complex English sentence to identify sentence elements, clauses, tense and voice. A three-level breakdown helps with articles and academic papers. Learn about grammar analysis ->
How translations are displayed shapes the reading experience: replacing the whole page, copying back and forth, or reading both languages together.
| Comparison | Built-in browser translation | Copying to an online translator | TopCopilot extension |
|---|---|---|---|
| Translation display | Replaces the original throughout the page; another click is needed to return | Requires copying and pasting to compare paragraphs | Translations below the original, with bilingual view and one-click switching or restoration |
| Engine choice | Microsoft Translator only (Edge) | Depends on the translation website | Switch freely between Bing, Google, built-in browser AI and LLM engines |
| Translation scope | Entire page, including navigation and footer | Only manually pasted passages | Main content only; skips navigation, ads and code blocks |
| Selected text and dictionary | None | None | Selected-text translation, word dictionary cards and English grammar analysis |
Built with Manifest V3. Install directly from Microsoft Edge Add-ons. The Chrome Web Store listing is coming soon with the same features.
Google Chrome
Chrome Web Store listing coming soon · Chrome 114 or later
Other Chromium browsers
Try browsers compatible with Manifest V3
Use the browser extension for websites and the Windows add-ins for Word, Excel and WPS documents, sharing one account and credit balance.
Whole-document, selection and selected-text translation, written back in place while preserving layout where possible.
Explore the Word translation add-in →Whole-sheet and selection translation across all visible worksheets. Switch between translated, bilingual and original views afterward, while preserving formula columns.
Explore the Excel translation add-in →Translate the whole presentation, current slide or selection, including charts and notes, while preserving slide layouts where possible.
Explore the PowerPoint translation add-in →Translate inside WPS Writer and Spreadsheets using the same steps as Word and Excel.
Explore the WPS translation add-in →Whole-sheet and selection translation in WPS Spreadsheets across all visible worksheets, with translated, bilingual and original views afterward.
Explore the WPS Spreadsheets translation add-in →Image / PDF to spreadsheet and natural-language formula writing, with results written directly into cells from sidebar chat.
View Excel AI Assistant (PDF/image to Excel) →Describe business rules and AI generates and writes back formulas for cross-sheet lookups, summaries and conditional statistics.
View Excel Formula Generator →Install TopCopilot AI Translation Assistant to turn English websites into bilingual pages with one click. Free engines are ready to use.
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